Fred Heath Martha Kyrillidou Duane Webster G. Sayeed Choudhury Benjamin Hobbs Mark Lorie Nicholas E. Flores Emerging Tools for Evaluating Digital Library Services: Conceptual Adaptations of LibQUAL+ and CAPM. 2003 4 J. Digit. Inf. 2 http://jodi.ecs.soton.ac.uk/Articles/v04/i02/Heath/ db/journals/jodi/jodi4.html#HeathKWCHLF03